Postgres                Postgres driver
RPostgres-package       RPostgres: C++ Interface to PostgreSQL
Redshift                Redshift driver/connection
postgres-query          Execute a SQL statement on a database
                        connection
postgres-tables         Convenience functions for reading/writing DBMS
                        tables
postgres-transactions   Transaction management.
postgresExportLargeObject
                        Exports a large object to file
postgresHasDefault      Check if default database is available.
postgresImportLargeObject
                        Imports a large object from file
postgresIsTransacting   Return whether a transaction is ongoing
postgresWaitForNotify   Wait for and return any notifications that
                        return within timeout
quote                   Quote postgres strings, identifiers, and
                        literals
